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Staff/Principal Software Engineer, Web Applications

Redwood City, CA

About Us:

Here at Fireworks, we’re building the future of generative AI infrastructure. Fireworks offers the generative AI platform with the highest-quality models and the fastest, most scalable inference. We’ve been independently benchmarked to have the fastest LLM inference and have been getting great traction with innovative research projects, like our own function calling and multi-modal models. Fireworks is funded by top investors, like Benchmark and Sequoia, and we’re an ambitious, fun team composed primarily of veterans from Pytorch and Google Vertex AI.

The Role:

We are looking for a Staff / Principal Software Engineer to build our developer-focused web application (fireworks.ai) and shape our front-end architecture. This role blends hands-on engineering with technical leadership, offering the opportunity to mentor other engineers, collaborate cross-functionally, and drive innovation in a fast-paced, AI-focused environment. You'll play a key role in delivering scalable, elegant solutions that directly impact our hundreds of thousands of developers and product vision. You will be directly shaping and shipping the most optimal developer journey combined with our large offering of open source generative AI models and enabling our users to seamlessly build, experiment and ship their AI workflows with our playground.

Key Responsibilities:

  • Engineering ownership of fireworks.ai with a strong focus on a delightful developer journey
  • Participate in the team’s shared accountability for product led growth through the web application and model playground
  • Design, development, and testing of responsive and performant web applications
  • Mentor and support a team of front-end/UI engineers through code reviews, pair programming, and ongoing technical coaching
  • Define and implement front-end architectural standards, best practices, and development workflows
  • Partner with Product, Design, and Backend Engineering to align on requirements, timelines, and delivery expectations
  • Build and maintain reusable, scalable component libraries and frameworks
  • Partner with other engineering teams to build an aligned developer journey across web, SDK and CLI surfaces
  • Champion quality, performance, and accessibility in all UI development
  • Drive innovation by staying informed of emerging front-end trends and technologies

Minimum Qualifications:

  • Bachelor’s degree in Computer Science or a related field, or equivalent practical experience
  • 5+ years of professional experience in front-end development
  • 3+ years of experience in a leadership role (e.g., tech lead, team lead, or engineering manager)
  • Proficiency in React, TypeScript, and JavaScript
  • Proven track record of delivering production-grade web applications
  • Strong understanding of responsive design, modern front-end architecture, and UX principles
  • Experience in full-stack development and API design

Preferred Qualifications:

  • Experience working in AI/ML-focused or fast-paced startup environments
  • Prior startup experience and especially as a technical founder is a plus
  • Experience managing or mentoring other engineers, including performance feedback and career development
  • Experience with front-end testing frameworks and CI/CD pipelines
  • Knowledge of accessibility standards and internationalization practices
  • Contributions to open source or internal component libraries
  • Experience working in AI/ML-focused or fast-paced startup environments
  • Prior startup experience and especially as a technical founder is a plus

Compensation is determined by various factors including individual qualifications, experience, skills, interview performance, market data, and work location. The listed salary range for this role is a guideline and may be modified.

Redwood City Pay Range

$220,000 - $270,000 USD

Why Fireworks AI?

  • Solve Hard Problems: Tackle challenges at the forefront of AI infrastructure, from low-latency inference to scalable model serving.
  • Build What’s Next: Work with bleeding-edge technology that impacts how businesses and developers harness AI globally.
  • Ownership & Impact: Join a fast-growing, passionate team where your work directly shapes the future of AI—no bureaucracy, just results.
  • Learn from the Best: Collaborate with world-class engineers and AI researchers who thrive on curiosity and innovation.

Fireworks AI is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all innovators.

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